Fire-door device.



` UNITED STATES PATENT OFFICE. A

SAMUEL n. nosENrnL'r, or CHICAGO, ILLINoIs, AssIGNoR To FRANKLINIaAILvvgAY SUPPLY COMPANY, 0F WILMINGTON, DELAWARE, A CORPORATION OFDELAWARE. v

FIRE-Doon DEVICE.

. To all whom t may cof/zoem.'

Be it known that I, SAMUEL 1)..Rosniv-v FELT, a citizenV of theUnitedStates, and a resident of Chicago, in the county of Cookand-State' of Illinois, have invented a certain newand usefulImprovement in Fire- "Door Devices, of which v-improvement the`following is a specification.

,This invention relates to apparatus 'for operating fire doors oflocomotive boilers or Y otherfurnaces, and'more particularly `such formof apparatus wherein the doors are pivoted to swing laterally andvertically, and a fluid pressure cylinder and piston are employed toactuate the same, as shown in the prior application of Albert G. Elvinand myself, Serial No. 789,645, iled September 13,1913, and the priorPatent No. 1,031,379, dated July 2, 1912. I

- My present invention has for its object to provide an improvedmanually operative means for actu-ating the doors independently of thefluid pressure mechanism whenever desired. y

, In the accompanying drawings: Figure 1 is a front elevation of a liredoor apparatus embodying my improvement; Fig. 2, a side or end view, thelower portion of the -doors being broken away; Fig. 3, a longitudinalsection taken on the axis of the pivot pin of one of the doorsandshowing the hand operating lever connections; and Fig. 4, ahorizontal section through the fluid pressure cylinder and piston.

According tothe construction shown in the drawing, my invention isillustrated as applied to a locomotive boiler having a door frame, `1,suitably mounted on' the back head, 2, and surrounding the fire doorlopening which is covered by a pair of doors,

10 and 11, pivoted upon suitable pins to swing' laterally andvertically. The pivot pins, 6 and 7, vmay be rigidlyy mountedv atSpecicati'on of Letters Patent.

Patented Feb.'1l5, 1916.

I Application led August 11, 1914. Serial Nuo. 856,224.

motor cylinder, 4. One end ofthel cylinder is closed by the cap, 5,andthe piston is operated by fluid pressure-admitted throughpipe 24, andcontrolled by a suitable valve. Vhen the operator desires to open thefurnace doors for firing, or other purposes," he vopens the valve,thereby admitting fluid.

into thecylinder, where it acts on the piston, 6, moving. thezsame tothe right, and, through the connecting link 'and segmental gears, swingsthe doors upward on their pivots to the open position,i n which thedoors remain as .long as theval've is held l open. When the Avalve isreleased and closed, the fluid exhausts from 'the cylinder, land thedoors close by gravity.l

For operating the door or doors by hand,

I providea hand lever, 18, which may be mounted on one of the door pivotpins, 7, which is made long for this purpose, the pin being formed witha shoulder portion between the frame, 1, and the web, 4.a, o-n whichportion the door, 11, is pivotally mounted, and carrying a bushing, 16,between the web and the nut at the end of the pin. On the'bu'shing, 16,is rotatably mounted a rocker arm, 19, having an extension, 21,providedwith an elongated slot through which extends the hand lever, 18,which is also pivotally mounted on the bushing, 16. A spring actuatedplunger, 22, is mounted within a recess in the-.rocker arm, and bearsagainst the hand lever, 18, to normally push the same toward the outerend of the slot in the extension, 21, of the rocker arm. The rocker armis also pro` lug, 17 on the door, 11, in order to open the same when therocker arm is turned by the hand lever. the pin is screwedv up, theparts are secured in their respective positions, the bushing, 16, beingclamped against the web, 4, which bears against the shoulder of the pin,leaving the door, rocker-arm and lever free to turn on their pivots.

In order to hold the l doorat different positions, a latch plate, 20,may be suitably sup- VVh'en the nut at the end of over the fire atcertain -i inthe intermediate notch, 27, known as the smoke latch, foradmitting air periods to eliminate smoke.

The hand lever 'normally eXtends upward l. the lever outward to clearthe edge of the latch plate, 20, whereupon the lever may be turneddownward tothe desired position, the rocker arm being also actuated bythis .movement, and engaging the lug, 17, to

swing the doors, 11 and l0, through their connecting gears, 12 and 13.The hand lever mechanism does not interfere with the `operation of thedoors by fluid pressure at any time desired, as the lug, 17, merelymoves away from the projection, 26, on the rocker arm when Huid pressureis admitted to the motor cylinder to open the doors.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is:

l. In a lire door apparatus, the combination of a door, a pivotallymounted member for actuating the same, and a hand lever for operatingsaid member and also having a limited longitudinal movement relativethereto.A`

2. In a fire door apparatus, the combination of a door, a pivotallymounted member for actuating the same, and a hand lever also mounted onsaid pivot and having a loose connection with said member permitting alimited longitudinal movement relative thereto.

3. In` a iire door apparatus, the combination of a vertically movabledoor, a pivotally mounted member for actuating the same, a hand levermounted to turn with said member but having a limited longitudinalmovement relative thereto, and a latch plate having notches to beengaged by said lever.

4. In a fire door apparatus, the combination of a door pivoted at itsupper side to swing laterally and vertically, a rocker member mounted onSaid pivot for actuating said door, and a hand lever mounted to turnwith said rocker but having alimited longitudinal movement relativethereto.

5. Ina fire door'apparatus, the combination of a door pivoted at itsupper side to swing laterally and vertically, a rocker member mounted onsaid pivot for actuating said door, and ahand lever also'mounted onvsaid pivot and having a loose'connection with said rocker permitting alimited longitudinal movement.

6.l In a fire door apparatus, the combination of a door, a pivot pin forsaiddoor, a rocker arm mounted on said pin and having a projection foractuating said door, and a hand lever mounted on said pin to turn withsaid rocker but having a limited longitudinal movement relative thereto.

7. In a ire door apparatus, the combination of-a door, a pivot pin forsaid door, a

rocker arm mounted 0n said pin and having a projection for actuatingsaid door, a hand lever mounted on said pin and to turn with said rockerbut having a limited longitudinal movement relative thereto, and aspring device on said rocker bearing against the lever.

8. In' a ire door apparatus, the combination o" a door frame, a pivotpin rigidly mounted'therein and having a shoulder', a door mounted toswing on the shoulder portion of said pin, a motor cylinder having aflange supported on said pin outside the shoulder, a bushing on the pinoutside the flange, a hand lever device rotatably mounted on saidbushing, and a nut for clamping the bushing against the cylinder ange.

G. H. A. KUNST, A. BENEDICT HECHMER.

